![background image](https://i.printerdoc.net/HP LaserJet Pro 300 color Printer M351 series/en/HP LaserJet Pro 300 color Printer M351 series_en165.png)
Remove shipping locks from cartridges
Description
A print cartridge shipping lock is installed on one or more print cartridges.
ENWW
Interpret control panel messages
147
![background image](https://i.printerdoc.net/HP LaserJet Pro 300 color Printer M351 series/en/HP LaserJet Pro 300 color Printer M351 series_en166.png)
Recommended action
Pull the orange tab to remove the shipping lock from the cartridge.